Exhaust system



Sept. 19, 1944. A. F. DECKER 2,353,690

EXHAUST SYSTEM Filed Nov. 21, 1942 ge i r) Gamma Patented Sept. 19, 1944EXHAUST SYSTEM Ammiel F. Decker, Pelham, N. Y., assignor to DeckerProducts 00., Pelham, N. Y., a partnership composed of Mabel P. Deckerand Ammiel F. Decker Application November 21, 1942, Serial No. 466,459

'2 Claims.

This invention relates to an exhaust system or means, for use onvehicles of any kind, as desired, and is an improvement over thatmechanism disclosed in my United States Patent No. 2,308,059 datedJanuary 12, 1943.

The invention will be hereinafter described with relation to its broaderaspect for exhausting air from any chamber or enclosed moving body suchas the interior of an automobile, subway car, aircraft, boat, etc.,although it is, of course, to be understood to be equally applicable inother relations than that above mentioned as, for example, the same useand relation as disclosed in my above mentioned patent, that is, at theend of an exhaust pipe of the motive system of any vehicle. Itsoperation depends upon the relative movement of the chamber to beevacuated and the surrounding atmosphere and its effectiveness dependsupon the amount of such relative rate of movement. To effect properventilation it is not essential that the chamber be moving. For example,a car may be ventilated by the action of the wind blowing past the endof the exhaust pipe while the car is stationary.

One of the objects of the present invention is to provide a relativelysimple and practical exhaust mechanism which may be easily and quicklyapplied to existing constructions and installations without materialmodifications of alterations.

A further object is to provide a mechanism having relatively few partswhich may be inexpensively manufactured and assembled.

Another object is to provide a mechanism of the above character which issubject to a variety of uses for ventilating vehicles or the motivepower exhaust system of such vehicles.

A further object is to provide a mechanism of the above character whichwill be strong and durable and not likely to be broken in ordinary use.

Other objects will be in part obvious from the annexed drawing and inpart hereinafter indicated in connection therewith by the followinganalysis of the invention.

This invention accordingly consists in the features of construction,combination of parts and in the unique relation of the members and inthe relative proportioning and disposition thereof, all as morecompletely outlined herein.

To enable others skilled in the art to fully comprehend the underlyingfeatures of this invention, that they may embody the same by thenumerous modifications in structure and relation contemplated by theinvention, drawing depictin? several forms of the invention have beenannexed as part of this disclosure, and in such drawing like charactersof reference denote corresponding parts throughout all of the views, inwhich:

Figure 1 is a simple diagrammatic View showing the complete system asapplied to a vehicle body of any character;

Figure 2 is a perspective view of a part of the system;

Figure 3 is an end elevational view;

Figure 4 is a detailed sectional View showing one of the major parts inelevation;

Figure 5 is a sectional view taken substantially on the line 55 ofFigure l;

Figure 6 is a side elevational view of one of the exhaust members withina vehicle;

Figure 7 is a sectional view taken substantially on the line 'l--'I ofFigure 6.

Referring now to the drawing in detail, H3 indicates diagrammaticaly theinterior of any vehicle body which may be either an ordinary sedanpleasure car, truck, boat, aeroplane, etc. Within this chamber [0 andpreferably at one or more sides thereof are upright easily bendablepipes l i of any suitable material terminating at their upper ends inintake ventilators l2 which may be relatively flat cylindrical boxeshaving a plurality of perforations over the face through which the airis drawn by the action of the exhausting element. These pipes I l areconnected with a main outlet pipe 13 preferably beneath the vehicle bodyof an automobile and to the outer end of which the exhausting elementbroadly designated as M is secured, if a separate element, in anydesired manner, as a clamping ring l5 embracing the main pipe 13 whichmay be of a different material, and an inner tubular member 6 as shownin Figure 2', which member is preferably of metal. By tightening upclamps such as set screws H, a clamping ring l5 securely holds the endof the tubular member it? in tight engagement with the exterior surfaceof the pipe l3. If the pipe i3 and part 14 are of the same material thejoint I5 is unnecessary unless for assembly reasons.

The exhaus u element Hi, of course, is positioned on this pipe with thelarger end or ends facing the normal direction of travel of th vehicle,as indicated by the arrows in Figure 1. Positioned above the exteriorsurface of the tubular member as shown in Figure 2 are a plurality offlaring members it preferably of conical shape by reason of ease ofmanufacture and assembly. The

smaller ends of these members pass through the tube l6, at an angle, asshown in FigureS, and are ofiset with respect to the axial line of thetube l6, and at an angle to any plane passing through this axis toprovide a substantially clear passage through the center of tube IE, butthese flaring or conical members 3 are not only positioned at an angleoffset with respect to the axis of the tube IE, but also are diagonallyinclined with respect to any plane passing through the axis in anydirection. Further, these flaring members are arranged in staggeredrelation, that I is, the smaller ends 20 are in advance of one anotheror all are in spiral relation. Thus, air passing in through the largerends 21' of these conical members I8 impinges tangentially with respectto the axis as more clearly shown in Figure 3 to produce a'whirlingaction of the entering air.

The blank from which each of these flaring members I8 is made, if ofmetal, is provided with an integrally formed web 22 which web is, ofcourse, the continuation of the blank forming the cone l8 itself. Theinner end of these webs may be spot welded on the outer surface ofmember IE, or secured in any other suitable manner. For instance, theymay pass through a slot 23, Figure 4, and be split transversely, asindicated at 24 and bent in opposite directions, as shown clearly at 26in Figure 5 to provide a firm anchorage.

J The opposite end of the blank may be turned in sharply at right anglesin the opposite direction as shown at 21 in Figure 5, thus providing astrong reinforcing rib extending longitudinally of the interior of thetube or cone, to diminish the possibilities of collapsing or bending ofthe flaring members under ordinary shocks, such as caused by thethrowing of stones by the rapidly rotating wheels of a car if such isthe application.

The particular means employed for connecting the members and holdingthem rigid in respect to each other will, of course, vary with thematerials employed and the use to which the invention is put.

These webs 22 may be spot-welded or otherwise rigidly secured in place,simultaneously with the welding of the adjacent effective edges of theblank forming the side seam of the cone adjacent his tab 28. Likewise,the bent over ends 26 of the web may be spot-welded or otherwise rigidlysecured to the main tubular member. It will probably also be desired tospot-weld each cone where it passes through the tube l6, as indicated at29.3i! in Figure .4. V r

The intake cylinders or drums l2 shown at Figure 1 may be modified asdesired, according to circumstances, and in Figures 6 and 7 there isshown intakes 3i as forming the light sup ports for the bulbs 32, in therear of an automobile or the cabin of a boat. These intakes areconnected by the same pipes II, as above explained.

It will be obvious that the ventilating action may be readily controlledas for instance by a damper 36 or any other suitable means.

While I have herein described this improvement especially applicable forautomobile vehicle ventilating systems, it is again pointed out that theexhaust element by itself is capable of a variety of uses andapplications and is also par ticularly adapted to be secured to the endof the exhaust system of the motive power of any vehicle. The air isscooped up by not only the small flaring conical members I8 but also aprotective outer shield '33 of general flaring DI conical constructionand this is secured not only to the ends of the flaring members l8, asat the points 34, but is also provided with braces 35 facing the smallerend concentrically with respect to the extreme end of the exhaust pipel3 as herein shown. 7 This outer shield 33 not only makes stronger andmore durable construction as a protection to the smaller members, butalso increases the efiiciency of the device as a whole for the cones I8,being diagonally disposed at an angle with respect to any plane passingthrough the axis, provided with the webs a series of spirally positionedchannels between the tube I 6 and the outer shield 33 and this scoopedin air exiting at the small end of the outer cone 33 increases thesuction at the extreme end of the tube I6, thus greatly reducing theback-pressure on the muiiler, for example, if it is used as a part ofthe motive system of a vehicle or an aid in exhausting the air from aclosed container or chamber when used in any of the several mannersherein described.

The end element is preferably made of thin sheet metal and well enameledto prevent rust by reason of the atmospheric condition to which it maybe exposed. The rest of the system, however, which is not exposed to anequal extent, may be of fibroid or plastic pipes or any materialsuitable to the exposed temperature, depending upon the use to which thesystem is put. In fact, all of the parts maybe non-metallic andsubstantially integral. If the invention were applied to a motor boat,then the entire installation as' shown in Figure 1 should probably beinverted. If on an aeroplane, then it could be used at any angle andapplied to the top, bottom or sides without modification or change.

The invention is of simple and practical construction which may beinexpensively manufactured and assembled and in use reliably andefficiently accomplish the desired functions and objects either as anexhausting means .or a part of the ventilating system.-

Without further analysis the foregoing will so fully reveal the gist ofthis invention that others can, by applying current knowledge, readilyadapt it for various applications without omitting certain featuresthat, from the standpoint of the prior art, fairly constitute essentialcharacteristics of the generic or specific aspects of the invention,and, therefore, such adaptations should and are intended to becomprehended within the meaning and range of equivalency of the follow-7 ing claims.

I claim:

1. An exhaust system comprising a tubular body member at the end of anexhaust pipe, an intake member of flaring shape extending through thewall of said tubular member at an angle with the larger end outside andits smaller end inside and'a web integral with said intake member andanchored inside said tubular member, said web having a split edgepassing through the wall of said tubular member and bent in oppositedirection to 'engage'the inner surface of said wall.

2. An exhaust system comprising a tubular body member at the end of anexhaust pipe, a plurality of flaring intake members .mounted around saidbody member and extending through theside walls thereof, and a singleflaring mem ber enclosing said first mentioned fiaringimern bers withits large end in substantially the trans-.

verse plane of the larger ends ofthe first menflaring members andpositioned outside of said exhaust pipe.

3 An exhaust system comprising a tubular body member having asubstantially straight central passage therethrough adapted to beattached to the end of an exhaust pipe, a plurality of air guidingmembers mounted around said body member, said members being positionedin planes angularly disposed with respect to a plane passing through theaxis of said tubular member, and a single flaring member enclosing saidfirst mentioned members with its large end in substantiall thetransverse plane of the larger ends of the first mentioned members andits smaller end adjacent the smaller ends of said air guiding membersand surrounding said tubular body.

4. An exhaust system comprising a tubular body member having asubstantially straight central passage therethrough, a plurality ofconical intake members mounted around said body mem-' her and extendingthrough the side walls thereof, the smaller ends of said flaring memberbeing positioned within said body member, the axes of said flaringmembers being positioned in planes angularly disposed with respect to aplane passing through the axis of said tubular member, and the smallerends of said flaring members being positioned in advance of one anotherwhereby air entering said flaring members passes therethrough and intothe tubular member at angles to produce a whirling action, and a singleflaring member enclosing said smaller first mentioned flaring members.

5. An exhaust system comprising a tubular body member at the end of anexhaust pipe, a plurality of intake members mounted around said bodymember and extending through the side walls and all facing in the samedirection, the said flaring members being positioned partly within saidbody member and positioned in advance of one another whereby airentering said flaring members passes therethrough and into the tubularmember at angles to produce a whirling action, and a single flaringmember enclosing said smaller first mentioned flaring member.

elO

6. An exhaust system comprising a tubular body member at the end of anexhaust pipe, a plurality of flaring intake members mounted around saidbody member and extending through the side walls thereof with the largerends of said flaring members on the outside of but spaced from said bodymember and all facing in the same direction, webs connecting the largerends of said members to the interior of the tubular member, the smallerends of said flaring member being angularly positioned with respect tothe axis of said member and within said body member with the smallerends of said flaring members positioned in advance of one anotherwhereby air entering said flaring members passes therethrough and intothe tubular member at angles to produce a whirling action.

7. An exhaust system comprising a tubular body member having asubstantially straight central passage therethrough, means for attachingsaid body member to the end of an exhaust pipe, a plurality of flaringintake members mounted around said body member and extending through theside walls thereof with the larger ends of said flaring members on theoutside of said body member and all facing in the same direction, thsmaller ends of said flaring member being positioned within said bodymember, the axes of said flaring members being positioned in a planeangularly disposed with respect to a plane passing through the axis ofsaid tubular member and the smaller ends of said flaring members beingpositioned in advance of one another whereby air entering said flaringmembers passes therethrough and into the tubular member at angles toproduce a whirling action, and a single-flaring member enclosing saidsmaller first mentioned flaring members with its large end insubstantially the transverse plane of the larger ends of the firstmentioned flaring member and its smaller end adjacent the smaller endsof said first mentioned flaring member and surrounding said body member.

AMMIEL F. DECKER.

